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Content for
TR 38.871
Word version: 18.1.0
1…
5…
5
UE RF testing methodology for multi-Rx chain DL reception
6
UE RRM testing methodology for multi-Rx chain DL reception
7
UE demodulation and CSI testing methodology for multi-Rx chain DL reception
8
Summary
A
Measurement uncertainty
B
UE coordinate system
C
(Reserved)
D
Inverse Channel Approach in demodulation testing
E
(Reserved)
F
(Reserved)
G
Step size of measurement grids
$
Change history
5
UE RF testing methodology for multi-Rx chain DL reception
p. 10
5.1
General
p. 10
5.2
Measurement setup
p. 10
5.2.1
Measurement Setup with Full Degree of Rotation Freedom for Each AoA
p. 10
5.2.2
Measurement Setup with Full Degrees of Freedom for AoA1 with Fixed Angular Offset(s) Between AoA1 and AoA2
p. 19
5.2.3
Measurement Setup with Full Degrees of Freedom for AoA1 with Variable Angular Offset(s) between AoA1 and AoA2
p. 24
5.2.4
Measurement Setup with Full Degrees of Freedom for AoA1 with Partial Freedom of Variable Angular Offset(s) between AoA1 and AoA2
p. 26
5.2.5
Measurement Setup with Full Degrees of Freedom for AoA1 with Fixed AoA2/Anchor in NF
p. 28
5.2.6
Measurement Setup with Test Modes
p. 29
5.2.7
Measurement Setup to reduce sensitivity to UE orientation in holder with full degrees of freedom for AoA1 with fixed angular offset(s) between AoA1 and AoA2
p. 30
5.2.7.1
Background and Motivation
p. 30
5.2.7.2
Implementation Direction
p. 32
5.2.7.3
Scan strategy to avoid source blocking
p. 35
5.2.7.4
Pros and Cons
p. 38
5.3
Test System Aspects
p. 39
5.3.1
Absolute Probe Locations
p. 39
5.3.2
Minimum and Maximum Angular Separation between Probes
p. 41
5.3.3
Impact of Probe Locations and 3D Scans on DL Directions
p. 44
5.3.4
DL Polarizations Perceived by the UE
p. 57
5.3.5
AoA1-AoA2 DL Orientation Vectors
p. 68
5.3.6
Far-field criteria
p. 74
5.4
Calibration Measurement Procedure
p. 74
5.4.1
Direct far field (DFF)
p. 74
5.4.2
Indirect far field (IFF)
p. 74
5.5
Test procedure
p. 75
6
UE RRM testing methodology for multi-Rx chain DL reception
p. 77
6.1
General
p. 77
6.2
Measurement setup
p. 77
6.2.1
Baseline measurement setup
p. 77
6.2.1.1
Test scenarios
p. 77
6.2.1.2
Measurement setup for Category 1 scenario
p. 77
6.2.1.3
Measurement setup for Category 2 scenario
p. 78
6.2.1.4
Far-field criteria
p. 81
6.2.1.5
Calibration measurement procedure
p. 81
6.2.1.6
Reference point
p. 81
6.2.2
Test parameters
p. 82
6.2.2.1
Test parameters for Mode 1
p. 82
6.2.2.2
Test parameters for Mode 2
p. 82
7
UE demodulation and CSI testing methodology for multi-Rx chain DL reception
p. 83
7.1
General
p. 83
7.2
Measurement setup
p. 83
7.2.1
Baseline measurement setup
p. 83
7.2.1.1
Reference point
p. 83
7.2.1.2
Far-field criteria
p. 83
7.2.1.3
Calibration measurement procedure
p. 83
7.2.2
Test parameters
p. 84
7.2.2.1
Noc level configuration
p. 84
7.2.2.2
Criteria of UE test directions
p. 84
8
Summary
p. 84
A
Measurement uncertainty
p. 86
A.1
Measurement uncertainty budget for UE RF testing methodology
p. 86
A.2
Measurement uncertainty budget for UE RRM testing methodology
p. 88
A.3
Measurement uncertainty budget for UE demodulation testing methodology
p. 89
B
UE coordinate system
p. 91
B.1
Reference coordinate system
p. 91
B.2
Alternate coordinate system for 2AoA testing
p. 92
B.3
Test conditions and angle definitions
p. 94
B.4
DUT positioning guidelines
p. 100
C
(Reserved)
p. 100
D
Inverse Channel Approach in demodulation testing
p. 100
D.1
An example of Inverse Channel Approach
p. 100
E
(Reserved)
p. 102
F
(Reserved)
p. 102
G
Step size of measurement grids
p. 102
G.1
Simulation results for step size
p. 103
$
Change history
p. 105